What are the key points of daily maintenance for hydraulic excavators used in coal mines（haoyun）

The editor of Shandong Haoyun Heavy Industry Machinery Co., Ltd. will discuss the key points of daily maintenance for hydraulic excavators used in coal mines.

The daily maintenance points of hydraulic excavators used in coal mines are as follows:

1、 Equipment inspection

1. Appearance inspection: Check the appearance of the equipment daily, including structural components, oil cylinders, oil pipes, etc., to see if there are any problems such as cracking, deformation, oil leakage, etc.
2. Bolt inspection: Check whether the bolts in various parts of the equipment are loose, detached, or missing. If there are any problems, tighten or replace them in a timely manner.
3. Axle inspection: Pay attention to the cleanliness of the axle part, promptly clean up dirt and debris, and add butter to prevent wear and tear.
4. Oil cylinder inspection: Check the surface of the oil cylinder rod for scratches, wear, or corrosion. If there are any, they should be dealt with in a timely manner. At the same time, pay attention to the sealing of the oil cylinder to prevent oil leakage.

2、 Oil management

1. Hydraulic oil inspection: Haoyun Heavy Industry reminds to regularly check the oil level and quality of hydraulic oil. If the oil level is too low or the oil quality deteriorates, the hydraulic oil should be added or replaced in a timely manner, and the oil filter should be replaced.
2. Gear oil replacement: Replace the gear oil of the rotary reducer and the walking reducer according to the prescribed cycle.
3. Butter filling: Regularly add butter to each lubrication point, especially in the pin shaft, rotary bearing and other parts. Pay attention to selecting suitable butter and wipe off the squeezed old grease.

3、 Electrical system maintenance

1. Battery inspection: Check the electrolyte level and specific gravity of the battery. If the level is too low, add distilled water or electrolyte. At the same time, check whether the battery wiring is loose or corroded.
2. Electrical component inspection: Check the working status of electrical components, such as controllers, sensors, etc., to ensure their normal operation.

4、 Other maintenance

1. Air filter cleaning: Haoyun Heavy Industry reminds to regularly clean or replace the air filter to prevent dust and other impurities from entering the engine.
2. Maintenance of cooling system: Check the water level and quality of the cooling system. If the water level is too low or the water quality deteriorates, add or replace the coolant in a timely manner. At the same time, check the working condition of the radiator and cooling fan.
3. Equipment cleaning: Regularly clean the dust, dirt, and other debris on the surface of the equipment to maintain its cleanliness.
4. Storage and maintenance: When the equipment is parked for a long time, the exposed metal parts should be coated with butter to prevent rust, the bucket cylinder should be retracted, the bucket should be placed on the ground, and a suitable storage location should be selected to avoid harsh environments such as humidity and salt alkali.